Separable fastener



Oct. 19 1926.

M. F. CARR SEPARABLE FASTENEB Filed Jan. 22. 1924 "uununmuv fil. I

Patented Oct. 19, 1926.

kUNI-*1" 1,604,026 lie-.TENT OFFICE- 11. sans. 0F manieren, Massacnussrrs, semanas T0 Geer @stelten centraux, or 'oaiunnrnen MASSACHUSETTS, A CORPORATION or MAINE.

senaat@ essentieeappneaumi fue@ ranuary 22, 192,4. serial No. 557.7501

This invention pertains to separable fasteners. l i," It is among the objects of the invention to provide a`v` simple and efficient fastener haying a socket of simple and inenpeiisive construction." n' .t

Referring to the drawings, which shou7 tivo Ai'll'ustrativ'e embodiments of my inventionf f vFigure 1 is ay section, partly in elevation, showing afpreferred form of fastener;

Fig. 2 is a rear elevation ofy the socket; Fig. '3 3' is a rear elevation of the socketattaching member, including a clenchfplate and cap;

Fig. 4 is Van elevation of the clench plate; Fig. 5 is a side 'elevation of the `clench plate; i i Fig.A 6` is a plan view of the socket;

Fig.` Z is 'a' side elevation of the socket shown in Fig. 6;'

FiguSh is a sectional socket.; and '.Fig. 9 is a side elevation of. the modified socket.

In that preferred form of my invention view of a modified selected for illustrative purposes" and shown in Figs, 1 through 7, I have shown a socket casing 11 attached toa Curtain 13.

The" casing Y11 is' preferablyformed from a single sheet of metal presenting an aperture 15 through which a stud 17 passes to engage a spring 19 held Within the socket 11. The aperture 15 is only slightly larger than the major diameter of the head of the stud, and the inner face of the aperture lies so close to the neck of the stud as to permit but slight strain on the spring 19 when the stud and socket are subject to lateral strain in opposite directions.

To attach the casing to the curtain 18, I have provided the casing with a rear fase formed by a series of petals 23, which, through a portion of their length, lit closely together to form the dome 21. These petals 23 also extend outwardly from the dome to provide attaching prongs which pass through the curtain 13 and are forced into engagement with an attaching member which includes a cap 25, enclosingl an anvil 2'?, against which the prongs are clenched outwardly and downwardly into engagement with a dislrshaped clench plate `29. The anvil 2'?, clench plate 29 and cap 25 are held, as is usual, in assembled relation by the inwardly flanged edge of the cap 253. The clenchl plate 29 presents a plurality off fabritlengaging spurs El, which contribute greatly "to" 'the firm grip on the curtain between the front plate 25 and the casing 11. The spurs 31 are struck out of the clench plate 29* adjacent the periphery thereof, but the `periphery of the` clench plate is left intactfso as'to provide a continuous support for the rolled over edge of the cap 25. The dome21, because of its shape, prevents collapse of; the rear Wall ofthe casing, While the latter is being pressed toward the attaching member and thus secured to the curtaih. The yWalls ofr the casing are ythus held in their normal position and insured against any such collapse of the rear wall' of the socket as might `interfere with free movement of the springwithin the casing 11 when the stud is enteredy into or Withdrawn from the aperture 15; v

`The modified form of my invention, shown in Figs; 8 and 9, isprovided with a casing 33` constructed substantially like that shown in Figs. 1` through 7, except that the prongs 35 vare "adapted to pierce the fabric, instead of passing through a hole therein, and to .prevent cutting of the fabric only alternate attaching. prongs are provided, as is,` best .shown in Fig. 9

The attaching member is preferably of the type shown in Fig. 8, wherein the cap or front plate and the anvil ll1 are integral, the clench plate preferably being identica with that illustrated in Figs. 1, 4 and 5.

While I have shown and described preferred embodiments of my invention, it Will be understood that I have done so for purposes of clarification, and not for purposes of limitation. The scope of my invention is best defined by the following claims.

I claim:

1. A fastener socket comprising a casing formed from a single piece of metal to present a continuous peripheral Wall, a front face having a stud-receiving aperture there through, a back face of substantial area formed by a plurality of inwardly folded petals, petal extensions projecting beyond said back face to provide prongs for engagement With a cooperating clench plate when said socket is secured to a flexible fabric.

2. A fastener' socket comprising a springcontaining casing presenting a peripheral Wall, a front face and a back face, said back face including a dome formed by a plurality of inwardly folded petals, petal extensions extending from said dome to provide prongs face having a stud-receiving aperture therethrough, a back face of substantial area formed by a plurality of inwardly folded petals, some of said petals projecting beyond saidback face to provide prongs for engagement with a cooperating clenchV plate when said socket is secured to a flexible fabric.

5. A fastener socket Comprising a casing presenting a back face, a plurality of prongs projecting from said back face, a socket securingcap having an anvil for turning said'prongs and a clench plate for engagement by said prongs, said clench plate presenting a plurality of spurs struck therefrom for gripping a curtain between said back face and said cap when said prongs are petals providing a vdome having its base spaced from said peripheral wall of the socket, and a plurality of petal extensions providing prongs integral with said petals and projecting from said dome, and an attaching part for location on the opposite side of the socket-carrying fabric from said y socket, said attaching part adapted to clench ity of spurs for gripping the socket-carrying fabric,`said spurs located adjacent the inner edge of said flange.

8. A fastener socket attaching member comprising a cover, and aV clench plate, the peripheral edges of said cover having an. inwardly extending ange to hold and conceal said clench plate, said clench plate centrally apertured to receive attaching prongs on the fastener socket and presenting a plurality of spurs for gripping the socket-carrying fabric, said spurs located adjacent the vinner edge of said flange and struck from portions of said clench plate which are concealed beneath said flange.

In testimony whereof, I have signed my name to this specification.

MOSES F. CARR. 

